{"title":"采用各向异性铌酸锂绝缘体光子波导的模式分割多路复用发射机","authors":"Weike Zhao, Mingyu Zhu, Xiaolin Yi, Hongxuan Liu, Hengzheng Cao, Siyuan Wang, Hao Yan, Fei Huang, Zejie Yu, Daoxin Dai","doi":"10.1002/lpor.202400861","DOIUrl":null,"url":null,"abstract":"In recent years, there is a growing interest in lithium‐niobate‐on‐insulator (LNOI) photonics due to its superior material properties, particularly its large electro‐optical (EO) coefficient. As a promising method to improve the communication capacity, mode‐division multiplexing (MDM) has received intensive attention. However, achieving effective mode manipulation is challenging due to the hybridness nature of LNOI photonic waveguides. In this work, an innovative multi‐channel mode‐division‐multiplexing transmitter is proposed that integrates eight EO modulators with an eight‐channel mode multiplexer for the <jats:italic>first</jats:italic> time. To leverage the EO effect and enable on‐chip mode manipulation, the EO modulators are strategically designed along the <jats:italic>y</jats:italic>‐propagation direction to access the largest EO coefficient. Conversely, the mode multiplexer is designed along the <jats:italic>z</jats:italic>‐propagation direction to mitigate mode hybridness. Experimental results demonstrate that the present MDM transmitter exhibits low loss (<2.5 dB) and low crosstalk (−12–−17 dB) across the C‐band. The modulator features a voltage‐length product of 2.7 V·cm and an RF modulation damping of 2.0 dB even at 67 GHz. With the implementation of the proposed MDM transmitter, successful high‐capacity data transmissions of 8 × 60 Gbps On‐Off‐Keying signals and 8 × 50 Gbps four‐level pulse amplitude signals have been achieved with a single wavelength‐carrier.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":9.8000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mode‐Division‐Multiplexing Transmitter With Anisotropy Lithium‐Niobate‐on‐Insulator Photonic Waveguides\",\"authors\":\"Weike Zhao, Mingyu Zhu, Xiaolin Yi, Hongxuan Liu, Hengzheng Cao, Siyuan Wang, Hao Yan, Fei Huang, Zejie Yu, Daoxin Dai\",\"doi\":\"10.1002/lpor.202400861\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In recent years, there is a growing interest in lithium‐niobate‐on‐insulator (LNOI) photonics due to its superior material properties, particularly its large electro‐optical (EO) coefficient. As a promising method to improve the communication capacity, mode‐division multiplexing (MDM) has received intensive attention. However, achieving effective mode manipulation is challenging due to the hybridness nature of LNOI photonic waveguides. In this work, an innovative multi‐channel mode‐division‐multiplexing transmitter is proposed that integrates eight EO modulators with an eight‐channel mode multiplexer for the <jats:italic>first</jats:italic> time. To leverage the EO effect and enable on‐chip mode manipulation, the EO modulators are strategically designed along the <jats:italic>y</jats:italic>‐propagation direction to access the largest EO coefficient. Conversely, the mode multiplexer is designed along the <jats:italic>z</jats:italic>‐propagation direction to mitigate mode hybridness. Experimental results demonstrate that the present MDM transmitter exhibits low loss (<2.5 dB) and low crosstalk (−12–−17 dB) across the C‐band. The modulator features a voltage‐length product of 2.7 V·cm and an RF modulation damping of 2.0 dB even at 67 GHz. With the implementation of the proposed MDM transmitter, successful high‐capacity data transmissions of 8 × 60 Gbps On‐Off‐Keying signals and 8 × 50 Gbps four‐level pulse amplitude signals have been achieved with a single wavelength‐carrier.\",\"PeriodicalId\":204,\"journal\":{\"name\":\"Laser & Photonics Reviews\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.8000,\"publicationDate\":\"2024-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Laser & Photonics Reviews\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1002/lpor.202400861\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laser & Photonics Reviews","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1002/lpor.202400861","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
Mode‐Division‐Multiplexing Transmitter With Anisotropy Lithium‐Niobate‐on‐Insulator Photonic Waveguides
In recent years, there is a growing interest in lithium‐niobate‐on‐insulator (LNOI) photonics due to its superior material properties, particularly its large electro‐optical (EO) coefficient. As a promising method to improve the communication capacity, mode‐division multiplexing (MDM) has received intensive attention. However, achieving effective mode manipulation is challenging due to the hybridness nature of LNOI photonic waveguides. In this work, an innovative multi‐channel mode‐division‐multiplexing transmitter is proposed that integrates eight EO modulators with an eight‐channel mode multiplexer for the first time. To leverage the EO effect and enable on‐chip mode manipulation, the EO modulators are strategically designed along the y‐propagation direction to access the largest EO coefficient. Conversely, the mode multiplexer is designed along the z‐propagation direction to mitigate mode hybridness. Experimental results demonstrate that the present MDM transmitter exhibits low loss (<2.5 dB) and low crosstalk (−12–−17 dB) across the C‐band. The modulator features a voltage‐length product of 2.7 V·cm and an RF modulation damping of 2.0 dB even at 67 GHz. With the implementation of the proposed MDM transmitter, successful high‐capacity data transmissions of 8 × 60 Gbps On‐Off‐Keying signals and 8 × 50 Gbps four‐level pulse amplitude signals have been achieved with a single wavelength‐carrier.
期刊介绍:
Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications.
As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics.
The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.